CN103644149A - High-pressure methylamine ejector - Google Patents
High-pressure methylamine ejector Download PDFInfo
- Publication number
- CN103644149A CN103644149A CN201310676606.2A CN201310676606A CN103644149A CN 103644149 A CN103644149 A CN 103644149A CN 201310676606 A CN201310676606 A CN 201310676606A CN 103644149 A CN103644149 A CN 103644149A
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- CN
- China
- Prior art keywords
- nozzle
- ejector
- injector
- spray nozzle
- methylamine
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- Jet Pumps And Other Pumps (AREA)
- Exhaust Gas After Treatment (AREA)
Abstract
The invention relates to a high-pressure methylamine ejector which is mainly used for a urea synthesis process and has the characteristic of high operating efficiency. The high-pressure methylamine ejector comprises an actuating mechanism and an ejector body which are fixedly connected, wherein a working flow passage and an injection flow passage right intersected in the vertical direction of the ejector body are arranged in the ejector body; an accepting chamber is formed in the communicated position of the working flow passage and the injection flow passage; a throat pipe, a diffusion chamber and an exhaust port are formed below the accepting chamber in a segmental manner; a spray nozzle is arranged in the accepting chamber; a nozzle needle is arranged in and matched with the spray nozzle; the upper end of the nozzle needle is connected with a transmission device of the actuating mechanism; the spray nozzle, the nozzle needle, the throat pipe and the diffusion chamber are located on the same axis; and a ratio of the diameter length of the throat pipe to the maximum length of the a spray nozzle outlet is 2-3.5. When the ratio of the diameter length of the throat pipe to the maximum length of the spray nozzle outlet is 2-3.5, the injection flow intake efficiency of the high-pressure methylamine ejector can be greatly promoted, so that the work and production efficiency is improved.
Description
Technical field
The present invention relates to a kind of liquid ejector, especially a kind of high pressure methylamine injector.
Background technique
High pressure methylamine injector is CO
2important device in air lift method urea synthesis technique, its working efficiency is directly determining the output of urea.For high pressure methylamine injector, its ejector characteristics (Δ Pc/ Δ Pp, the ratio of flow type pump with injection pressure drop and workflow pressure drop) is to be determined with the ratio (f3/fp) of the cross-section area of nozzle by jet coefficient and trunnion sectional area.Owing in synthesis technology, the first ammonium of obtaining is had to fixing pressure requirement from high pressure methylamine injector, so the jet coefficient of all kinds of high pressure methylamine injectors is all roughly the same, therefore the relative pressure drop (Δ Pc/ Δ Pp) at high pressure methylamine injector is mainly determined by trunnion sectional area and the ratio (f3/fp) of the cross-section area of nozzle.At present, in common high pressure methylamine injector, the ratio of trunnion sectional area and the cross-section area of nozzle cannot allow the flow type pump with injection pressure drop of sparger and the ratio of workflow pressure drop reach maximum, so just the performance of high pressure methylamine injector cannot be brought into play completely, be made high pressure methylamine injector cannot reach working efficiency.
Summary of the invention
Technical problem to be solved by this invention is to provide the high high pressure methylamine injector of a kind of conveying liquid body medium efficiency.
The technical solution adopted for the present invention to solve the technical problems is: high pressure methylamine injector, comprise the actuator and the injector body that are fixedly connected with, in injector body, be provided with the work runner just crossing with injector body vertical direction and injection runner, the connectivity part of work runner and injection runner is provided with receiving chamber, receiving chamber's below subsection setup has trunnion, explosion chamber and exhaust port, in receiving chamber, be provided with nozzle, in nozzle, be provided with nozzle needle, nozzle needle coordinates with nozzle, nozzle needle upper end is connected with the transmission device of actuator, nozzle, nozzle needle, trunnion and explosion chamber are on same axis, the ratio of the extreme length of described throat pipe diameter length and nozzle exit is 2--3.5.
Further, described actuator is provided with dial.
The invention has the beneficial effects as follows: by the ratio of the extreme length of throat pipe diameter length and nozzle exit after this scope of 2--3.5, can allow the ratio of flow type pump with injection pressure drop and workflow pressure drop reach maximum, thereby make high pressure methylamine injector can reach the most efficient working state.
Accompanying drawing explanation
Fig. 1 is existing structural drawing of the present invention;
Fig. 2 is the enlarged view at A place in Fig. 1.
Shown in figure: 1-actuator, 11-dial, 2-injector body, the 3-runner of working, 4-injection runner, 5-receiving chamber, 6-trunnion, 7-explosion chamber, 8-exhaust port, 9-nozzle, 10-nozzle needle.
Embodiment
Below in conjunction with drawings and Examples, the present invention is further described.
As Fig. 1, shown in Fig. 2, high pressure methylamine injector of the present invention, comprise the actuator 1 and the injector body 2 that are fixedly connected with, in injector body 2, be provided with work runner 3 and the injection runner 4 just crossing with injector body 2 vertical directions, the connectivity part of work runner 3 and injection runner 4 is provided with receiving chamber 5, receiving chamber's 5 below subsection setups have trunnion 6, explosion chamber 7 and exhaust port 8, in receiving chamber 5, be provided with nozzle 9, in nozzle 9, be provided with nozzle needle 10, nozzle needle 10 coordinates with nozzle 9, nozzle needle 10 upper ends are connected with the transmission device of actuator 1, nozzle 9, nozzle needle 10, trunnion 6 and explosion chamber 7 are on same axis, the ratio of the extreme length in described trunnion 6 diameter lengths and nozzle 9 outlet ports is 2--3.5.In high pressure methylamine injector when work,, using the higher medium of pressure as working fluid; Workflow cognition enters receiving chamber 5 with higher speed from nozzle 9, in Bing receiving chamber 5, mixes also and is with as trunnion 6 with the lower driving fluid of pressure.In this process, a part of kinetic energy of working fluid can pass to driving fluid, in trunnion 6, the speed of fluid-mixing is balanced gradually, with the rising of pressure, fluid-mixing pressure from trunnion 6 enters explosion chamber 7 continues to raise, and then at exhaust port 8, discharges the fluid that meets demand simultaneously.When the ratio of the extreme length in trunnion 6 diameter lengths and nozzle 9 outlet ports is 2--3.5, it is maximum that the ratio of flow type pump with injection pressure drop and workflow pressure drop can reach.Now flow type pump with injection pressure drop amplitude is larger, and this efficiency that can make high pressure methylamine injector suck flow type pump with injection significantly promotes, thereby has improved on the whole working efficiency and the manufacturing efficiency of high pressure methylamine injector.
For the ease of accurately controlling high pressure methylamine injector, described actuator 1 is provided with dial 11.Dial can accurately reflect the important parameters such as nozzle folding degree and medium injection amount, makes staff can control accurately high pressure methylamine injector, is especially applicable to using in the middle of the equipment of accurately controlling at needs.
Claims (2)
1. high pressure methylamine injector, comprise the actuator (1) and the injector body (2) that are fixedly connected with, in injector body (2), be provided with work runner (3) and the injection runner (4) just crossing with injector body (2) vertical direction, the connectivity part of work runner (3) and injection runner (4) is provided with receiving chamber (5), receiving chamber (5) below subsection setup has trunnion (6), explosion chamber (7) and exhaust port (8), in receiving chamber (5), be provided with nozzle (9), in nozzle (9), be provided with nozzle needle (10), nozzle needle (10) coordinates with nozzle (9), nozzle needle (10) upper end is connected with the transmission device of actuator (1), nozzle (9), nozzle needle (10), trunnion (6) and explosion chamber (7) are on same axis, it is characterized in that: the ratio of the extreme length in described trunnion (6) diameter length and nozzle (9) outlet port is 2--3.5.
2. high pressure methylamine injector as claimed in claim 1, is characterized in that: described actuator (1) is provided with dial (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310676606.2A CN103644149A (en) | 2013-12-07 | 2013-12-07 | High-pressure methylamine ejector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310676606.2A CN103644149A (en) | 2013-12-07 | 2013-12-07 | High-pressure methylamine ejector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103644149A true CN103644149A (en) | 2014-03-19 |
Family
ID=50249414
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310676606.2A Pending CN103644149A (en) | 2013-12-07 | 2013-12-07 | High-pressure methylamine ejector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103644149A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106351768A (en) * | 2016-09-08 | 2017-01-25 | 江苏大学 | Electrically-controlled gas injection system with gas-powered engine |
| WO2019146322A1 (en) * | 2018-01-24 | 2019-08-01 | 株式会社デンソー | Ejector |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5309736A (en) * | 1990-10-16 | 1994-05-10 | Northeastern University | Hydrocarbon fluid, ejector refrigeration system |
| CN2177115Y (en) * | 1993-10-10 | 1994-09-14 | 贾明浦 | Adjustable proportional ejector |
| US20030044287A1 (en) * | 2001-08-30 | 2003-03-06 | Festo Ag & Co. | Vacuum producing device |
| CN1532471A (en) * | 2000-06-01 | 2004-09-29 | ��ʽ�����װ | Jet circulation system |
| CN1769718A (en) * | 2004-11-03 | 2006-05-10 | 东元电机股份有限公司 | Returning oil injection pump of water cooling machine |
| CN201190140Y (en) * | 2008-04-03 | 2009-02-04 | 北京航天石化技术装备工程公司 | High pressure methylamine injector |
| CN103233924A (en) * | 2013-04-23 | 2013-08-07 | 武汉大学 | Adjustable annular jet pump |
-
2013
- 2013-12-07 CN CN201310676606.2A patent/CN103644149A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5309736A (en) * | 1990-10-16 | 1994-05-10 | Northeastern University | Hydrocarbon fluid, ejector refrigeration system |
| CN2177115Y (en) * | 1993-10-10 | 1994-09-14 | 贾明浦 | Adjustable proportional ejector |
| CN1532471A (en) * | 2000-06-01 | 2004-09-29 | ��ʽ�����װ | Jet circulation system |
| US20030044287A1 (en) * | 2001-08-30 | 2003-03-06 | Festo Ag & Co. | Vacuum producing device |
| CN1769718A (en) * | 2004-11-03 | 2006-05-10 | 东元电机股份有限公司 | Returning oil injection pump of water cooling machine |
| CN201190140Y (en) * | 2008-04-03 | 2009-02-04 | 北京航天石化技术装备工程公司 | High pressure methylamine injector |
| CN103233924A (en) * | 2013-04-23 | 2013-08-07 | 武汉大学 | Adjustable annular jet pump |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106351768A (en) * | 2016-09-08 | 2017-01-25 | 江苏大学 | Electrically-controlled gas injection system with gas-powered engine |
| WO2019146322A1 (en) * | 2018-01-24 | 2019-08-01 | 株式会社デンソー | Ejector |
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|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20140319 |